Nowadays, there are more and more cardholders. If you simply regard your bank card as a tool for deposit and withdrawal, it is simply too "unfair" to them. In fact, from ordinary debit cards to credit cards that can "consume first and pay later", each has its own characteristics. If used properly, not only can you enjoy more convenience, but also save money for the cardholder, achieve the purpose of personal finance, and fully enjoy the modern "card-style" life.